Glass-molding machine.



W. 1 MILL-111. GLASS 'MOLDING MAGHINB, APPLICATION FILED PEB.. 23, 1909.

Patented 111211.11910.

` 4 SHEETSQSHBBT 2,

mom-frs W. J. MILLER.

GLASS MOLDING MACHINE, AKILIA'IIN FILED FEB. 23;.` 1G09.

' Patented Mar. 1, 1910.

, l 4 SHEETS-augm- 4.

` IN1/ENIGH WILLIAM LT MILLER monwfrs WILLIAM J. MILLER, onl corrnrvrnnn,

eLAssMoLmne MACHINE.

ggyqygpaya' specification of Letters Patent Patented llal'". ll, 1910.`

.Fien

Kansas.

Application tiled February 23, 1909. Serial No. 479,516.

To all whom it'mag/ concern:

Be ity known that I, WILLIAM J. MILLER, a

citizen of the United States, and a resident of Cotfeyville. in the county of Montgomery and State of Kansas, have invented certain new and useful Improvements` in Glass- Molding Machines, of which the following is a specification.

Mv invention is an improve-ment in glass molding machines and .consists in certain novel constructions and combinations of parts hereinafter described and claimed.

The object of the invention is to provide improvements which will convert semiau tomatic machines of the type shown in Pats ent No. 787,050, of April 11, 1905, into prac! tically automatic machines. l y

Referring to the drawings forming' a part hereof-Figure l is ay side View of a molding machine provided with the limprovements, the novel features being shown in full lines; Fig. 2 is a section onthe line QM?, ot Fig. l; Fig. 3 is a.' longitudinal section of the shears; Fig. 4 is a. longitudinal section through the valve which operates the shearsylfig. 5 is a longitudinal section of the timingdevice; Fig. 6 is a `section on' the line' tl-li of'FiU.. 5; Fig. 7 is a 'plan view'of,y

the. scale .and indicator; Fig; 8 is a side `view of the device for :shifting the bottoms, Fig.' 9 is a .plan View of the blowing bottom, and

' Figul is a partial plan view of the means r'or regulating the extent otmovement of the ever. n l Y Theprcsent embodiment of myinvention consists in part of a pair of shears arranged at the charging position and adapted to eut oli' the glass as 1t is inserted into molds by the gatherer, the shears being actuated by the panty or pontil as the glass is placed in the mold.

The glass bl out-ing machine shown consists of a column or spindle 1', on which. is rotate` bly mounted a table which carries the blow molds andthe primary bott0ms. The table consists of an upper plate 2 carrying the blow molds, and a lower part or "ring 3 carrying, 'the primary bottoms, and the parts are scoured together by means of brackets L An intcrl'nittcnt rotary movement is imparted to the table by means of anyl suitable mechanism, conm-acting' a sleeve 6 loosely encirclingr thel spindle 1 below the ring 3, with the pisteq rod of an an' cylinder 8'.

ln the construction shown, the'table 2 is provided with five blow molds, oneufor together' b The goil eway consists of a plate, a shoul-j.

charging, one for pressing, one for blowing,

one for discharging, and one which is, er-

iaitted to cool before charging, 4so that. a of the operationsabove mentioned can take place simultaneously. It will be understood that each intermittent movement of the table carries a mold .from One vstation to the next.

The shears as before stated, are at the charging positiomand consists Vof a pair of f blade carriages l0 and 11, which are movable toward and from eachl other in a guide.

way l2, arranged transversely of a bracket 13, which bracket projects from and is integral with the cylinder head 14 'of a cylin-` der 15.V The cylinder 15 is providedwith an integral split bearing 16, which encircles the standard or spindle 1 before mentioned, the sections of the splitbearing being secured bolts 17..

der 19 being formed between the 4plate and the bracket, and longitudinally of the plate andspaced apart from each other, crear-m ranged pairs of superimposed strips 20 and 21 whose inner adjacent edges are`beveled as at 22, and the strips are secured to the plates by screws 23.

- The blade carriages 10 and l1, have their edges beveled as at 24 to fit between the beveled edges of the strips, and each is provided in-its upper surface with a depression, in l which is received the blade 26, the blade being retained in place by a cross bar 27 Secured to the carriage by screws Q8, and provided with a pin 29 at its center for a purpose to he presently described. The meeting yedges of the blades are preferably concave as levers 1s provided witha lateral lug 37 and links 38 are pivoted to thecross head as at 39 and to the lu 37.

. lt will be evidnt. from the description, that when fluid under pressure is admitted will be moved forward, us moving forward the cross head which through the conl nection of the links with the levers will move the blades toward each other, 'while a re- -to the cylinder behind the piston, the piston y verse movement ofthe piston will move them in the opposite" direction. Each end of l -the cylinder'is provided with a port 40, 41, and the ports are/controlled bya valve 42,

which may be of'any suitable construction, and is 'operated by means of a lever 48, whose free end 44 extends to a point convenient for i engagement by .the'g'atherer as he places the charge through the opening 45.

'As shown, it 1s 1n position for engagement. by the punty. The valve 42 before mentioned'operates a valve plug i-n a casing or cylinder 42, hav ing removable heads 48 and 49, secured tor the cylinder by screws 50. The lower head to receiventhe head 50,-s0 that when the the machine,- 55

port 56 by means of stem is in its lowermo'st'position the surface of the head is iush with the inner surface* of the cylinder head.Y 4

The valve casing'is provided .with ports and 56, and with an exhaust opening 57 The port 40 of the' cylinder 15 connects with the port 55 of the casing bya pipe 4 0, from which'branches 40", 40c and 40*1 lead to the" cylinders 140, 141 and 8 respectively, the* cylinder 140 bein connected with the blow-v ing apparatus, t le cylinder 141 with the mold clamping' apparatus, and the cylinder 8 with the table rotating mechanism. 'The port 41 of the cylinder 1 5 is connected by a pipe 41 with theport 56 of the valve casin andby branch` plpes 41", 41e` and 41d wit the cylinders,I 140, 141 and 8 respectivelywwe. The -valveplu'g 59 is provided with/a groove 59a wlnchis adapted to connect the ports 55 or 56 With theeizhaust port 57, de pending upon the position of the plug, and the casing is provided with an inlet' ort' 60v which is adapted to be connected with the opening-*62 and 63 in the ca sing and plug respectlvely, and with the port 55 when the plug-is 1n lowered position. rhe stem 52 before mentioned is operated by means of an armv64 adjustably secured on a rod or link 65 to be presently described, and thevalve ca sin is secured to a standard 66 supported by tie base 67 o'f to which base the spindle 1 is also connected b means of'a split-hearing 68.

The lever 43 efore mentioned is pivoted to a" bracket' 69 extending from the valve casing 42, which is connected with the valve vcasing,42 by a pi e 71 extending from the lower part thereoii.J The valve casing 42 is provided with an opening forming an outletfor the valve casing4 42, but-nornially closed by a Ivalve 72 whose'stem rojects through the casing and is in position for arm being -enga engagement bythe levez` 43, the `valve being v normally supported in 'closed positionl by the spring 73.' The valve plug 59 is glnded'lu its movement by a pin 74 arranged transversely of the valve casing and engaging a. slot 75 -in the plug.4

It will be evident from the description, that when the lever 43 is depressed to'open the valve 72, the plug 59 will drop, thus placing the inlet port of the valve casing in communication with the port 55, and through the pipe 40 and its branches with the cylinders 15, 140, 141 and 8, thus operating the shears,4 raising the blow head releasing 'the mold clamping apparatus, and turning the table. At the same time the port 56` isin communication withthe exhaust, thus exhausting the pipe 41et and its branches. When the link 65 moves upward, the valve 59 will be lifted, thus admitting-duid to the opposite ends of the cylinders, whereby to open the shea-rs, to lower the blow head, clamp the mold, and retract the table turning mechanism. l y' I 1 The' link'` before mentioned, has its lo`wer end connected with the lever 76 pivotedas at 77 beneath the' table, the central l portion'of the .lever being connected with a rod 78 whose upper end Iengages .one of a series of openin s in the lower table, whereby tolock the ta le at the end of each inter- 'mittent movement. The Yupper end of the link is connected to one'arm `of an elbow lever 80, pivoted to a sleeve 81 on the standard. 66, and the other arm o-thcelbow lcvt is engaged by a trip-82 on an arm 83 secured to the' plunger stem 84. 'The tri 82 is mounted to yield on the downwai` oveinent offthe arm and on the' upward` ovenient it operates the elbow lever to unlock the table, the link `moving downward. A spring 85 is connected wit 1l the first named arm of the elbow lever for returning the lever 'to itsoriginal position, and it is upon the upward 'movement of the link that the valve `plug 59 is lifted thus operating the cylinders as before mentioned.

In the operationof molding` the glass, a plurality of bottomsl is made use "of-for closing the lower end of'the mold, the firstor primary bottom being` a plunger or blank end thereof a stem 87. The primary bottom is used during the operation of theforming plunger 84, and is normally in lowered, position, being elevated into position by a roller 88 onone endl of an arm 89 pivoted to a standard 90.0n the base, the other end 'of the ed by one end of a link 91 whose other en is connected with the' arm 83 on the plunger stem, so that when-the plunger is depressed the roller'engages the stem of the primary bottom moving said bottom into place in-which osition it is Vretained by a bracketv92 mova ly connected to the- ,sleeve.6"before mentioned. This being pivoter 1-'J9 having oneend pivoted to the bracket 95 llt) ornaat mechanism however,- orine no partei the bottoni when the said bottom is permitted te` d rllie other end. has an opening there' th negli, throi'lgh which loosely passano fa threaded rod Qi', the other end oit the rod l, tothe lateral arm 98 ot a lever an at 1011, and a collar 101. in adjuetably mounted on the rod, between which and the end of the lever 93 is .arranged a Spring 102. Nuts 103 are threaded on to thelower end oit' the rod, the nutdanrl the collar torminp an adjusting means o-rthe spring and for the vposition ot' the lever 99.

To the tree end of the lever 99 is pivoted by its center a bar 104; by a cap screw 105, and the lower end of `the bar is engaged by spring G whose other end is connected to the lever. rllhe upperendot the bar is provided with a` pin 108 which is adapted to eatch and hold .the outer end otlf an arm 109, for a. pnrpo-ae to be presently described, and the secondary bottoni 110 is secured to the arni byineane of Screws: 111. The arm also provided with a knob 11:2 by means oi? which it. inaybe moved out of position.,

Arranged upon the table i); and encircliiigz,1

the openings over which the mold is placed,`

is themold plate 113 and. the opid plate il; provided with a radial 2truiden/ay 114, in which moves a lug 115 on the under suriace of the `eecoi'idary bottom, the lug guiding the bottom in its radial moven'ivent.

it. will be. evident 'from the description,

that when the primary bottoni is permitted to drop the stein thereof 'will -engage thevr end 9G of the lever 921, thuseievating the other end thereof, and tilting the lever 99 on its pivotal connection 100 with the bracket. n Such tilting movenuant` in radial with respect to the table, and zia-described the secondary bottom' is; moved into position within the mold.` Such moyement, however, in a lagging," movement coniderably slower than the movement ot the primary bottom or the movement. of the lever 93, on account of the yielding connection between the lever 93 and the lever 99. and the amount ot' the lagging may be nicely adjusted by means ol'ivt'he nuts and the collar on the rod. The lever 99 retorna to its original 'position by gravity, being heavier at 18.

.lihe above described delayed movement insures the clearance of the primary bottom from the mold before the secondary bottom in moved into poeition. The pivotal connection of the bar with the lever 9S) per* mits ,lateral movement ot the arm with reyrespect to the lever Without disconnecting; the parte, thus prei/citing breakage Should the arm move laterally with respect to the lever.

Ars before mentioned, the pin 108 en* "the outer end of the arm 109, and is not released until the table commences to turn. At thieytilne the bottoni is in position in the mold. and is partially rotated by the engagement' olf the pin, so that the lug v115 is thrown out of aiiueinent with the radial guideivay, thus preventing the bottom tron" moving' outward of its oivn accord.

1n lge. 5, 6 and 7 is shown a timing device for regulating the moment, when the forming plunger shall be Withdrawn from the pressed article, such device comprising a cylinder 11G, in which is movable a piston 117, the cylinder being provided with removable heads 118, through the upper of which passes the stem 1190i1 the piston, and the outer end thereot1 is`connected with a cross head 120, having on one end there ofa cam 121, the other end being traversed by a rod 19.2, which is secured 1n place by nuts 123 and passes through` bearings 1n lugs 1% extending from the heads of the cylinf der, the lower ends of the rod being adapted tor engagement by a bracket 125 seeuredto the forming plunger.

The cylinder 1S provided in its lower end with a port normally closed by a check* valve 126;, and the port communicates with a enp 127' secured to the cylinder head, and' the cup is connected by a pipe 128 with the upper` end of thoeylinder, and a storage tank 129 for a suitable fluid is connectedv by a pipe 130 with the cup 127 before men tioned. A sealell is secured to the upper end of the cylinder,a1id a pointer 132 cooperates With the scale, the pointer being Secured as at 133 to the stem 134 of a valve 1.35, which. controls a. passage 13G leading,r

Vdirectly from the lower end of the cylinder to the cup. By adjusting the pointer on the scale, the valve may be set to open any desired distance whereby to permit a greater 'or lesser flow of fluid.

When the plunger uscendo, the bracket 125 engages the lowerrnd ot' the rod 122, moving .the Same upward und with it the pieton 11T, as also the cani 121. Liquid Hows 'from the Storage tank into the cup, past the cheek valve and throun'lithepassage 1.36 into the lower end of the cylinder. When the forming plunger againdescenzds, the, liquid must be forced out through the passage 136, Whichis .more or lees closed by the movement of the pointer. The lever 137' which admits ftuidito the lower end. ofithe cylinder-138 that operates the forming plunger, is engagedby `the cam 121 as the piston 117 is reaching the lower end of the cylinder andis'moved' by such cam where-v by. to Operatethe-vIVe. .It will be` evident that by moving the 'pointer more or; lessvv to I- close thepassage 136, the'commencing' of the 4rising movement ofthe lunger may be nicely/- ca1c ulated and ad}usted. .The

, crosshead 120 may be provided-with anini l.The cylinder 116 is clined vcam as shown in Fig. 5,' or maybe of any other suitable shape or construction.

inder whichoperates the' forming plunger by means of a suitable plate 140.

. I n operation, when a mold reaches charg- A lng position, the gatherer places a charge in tho-.mol

Ns eeve 6 turns the table.

once partially: rotated to bring the charge 'in thev position -for pressing. operation is continued a predetermined time the mold', at'the same time touching the lever, Which'operates the shears', thereby cuts of the lass raisesihe blow head, unloc`ks dg and admits air to the table turning c linder .and through the medium of the The table is `at The pressing accordingly asthe pointer is adjusted with referenceQto the scale. When the piston reaches the lowerend of the cylinder'of the `.ti1ning device,'it shifts thevalve which controlsV the forming plunger cylinder,.tl1e form "ing plunger is ralsed, and the. primary botleaks past the plugand forced to the -bottomo the casing. It will be understood that the valve plug i tom4 is permitted to drop,

the droppin of thepprimarybottom as g before desc'rlbed bottom in place, and when the lever 43 isagaiu-depressed the table isinoved'f to blowing position. The

Y next movement brings the mold to the discharging-position, and-the next to cooling position .after which the operation is repeated. i The extent of movement ofthe lever 99 maybe adjusted by means of disks jour- Unaledneccentrically as' at 151 betweenthe bracket 95 vanda plate 152, the pivots 51 of thev disks being cap screws as shown.A By i loosening the cap l turned, and may be retained in their adjust screws the disks may be ed position by tightening the screws.

The valve plug is retained in its upper po-L sition, by means of the ilu'ic pressure whleh fills the space therebelow, the plugbeing not a perfect lit in thevc'asing. This pressure and the friction of the plug against the casing prevents its falling f its own weight. However, when the air is exhausted atI 72 the pressure is then greater above than below and it is is pushed up bythe upward vmovement ot' the link,` throughthe mediumfofv the small rod which .passes through the lower head of'tlie'valve A cape through'the caping vvfaster than it leaks past the plug,I

pressure orjrelievnggthe pressure beneath the 'plug and since,'the 80 'full pressure is above the plug, it fis forced a connected with the cyl-4 sions, a bar arranged transverseliy a to the cross headand to 'for controlling the admission of fluid. to.

and bracket attached thereto..

casing, and is held up by vthe 'said bracket; until the table is again unlockedadtho" link depressed. By thist time enough air has escaped pastthe valve plug to the lovmr fend of thecasing to ll't'he space below 7o plug and the pipe leading to the g small valve .42,i the said lvalvebeing megnwliile" closed wlth the same pressure of arras-11's above the plug. The friction of the plu'- against the casing holds it suspended' 1.75V

plug isy permitted to Vles#l the air below the valve 42, the said-lair es# thus lowering the to the bottoni of the casing.

I claim:

said shears comprising a.' bracket provided with aguide plate, havin e an opening therethrough above' the mol pairs of strips arrangedin parallel relatioi 1 the inner adje-YM cent corners of the vmembers of the pairs be-- on each side of the opening,

ing beveled, blade carriages having' beveled .v edges engaging between the members of the pair, and arranged onY 'each side of the open.` depressions in 9 5 ing, said carriagesv having the upper face thereof, blades inthe depres` 1 on-,ettchI carriage and. bearing on the b de, said bars having anupwardly prc jectingA pin, 'levers pivoted to the bracket and having a 10C forked end for engaging the adjacent pins,a cylinder with one of whose heads the bracket is connected, a piston movable'in the cylinder and having a cross -head vconnected with ,the tree end of'its the levers, 'a 'valve 1.' In a 'device of the' dassv descritas; l' ears arranged above the mold when 1t is m 85 charging position,

rod, links pivoted 10 5 with the lower end thereof, a'checkvalve 120 .arranged in the communication, a discharge opening leading from -thelower end of the cylinder to the operated by' the upward movement of the forming. plunger for lifting said-piston, a valve foxy controlling 'the admissionof fluid to, the

reservoir, a valve for 'con trolling said opening, means for indicatin the extent ofop'ening of the valve, a piston 125 movable in the cylinder, means cylinder of the forming plunger-for mov? 18 ing the Vsame upward, and acum coniiected with -the piston rod of the said piston tor operating said valvewhen the piston is in its lowest posuion.

3. In a machine of the class described, the

combination with an intermittently rotatiiilg.

table provided with a plurality ot' niolds, ol a Vprimary bottom for each mold., isaid botA toni comprising a plunger having a down-4 wardly projecting stem, a secondary bottoni slidable radially of the table, a lever pivoted by its center and having one end in position for engagement by the stein of the plunger when. the said plunger nioves downwardly, an arm pivotedby one end and having a yielding connection with the secondary bottom for moving the saine in position, and a yielding connection between said arm -and 'l the .other end of `the lever for the purpose set forth.

4. In a machinc'of the class described, a mold, a forming plunger for cooperating with the mold, fluid operated means. for moving the former into and out of the mold,

'a' valve for controlling said means, and a meansfor varying they duration .of the stay prising a cylinder, a piston therein, a reservoir for uid communicating with the lower end of the cylinder, a check valve in the communication, means whereby the upward movement of the plungevl will lift the piston and vpermit the fluid to-enter the cylinder, an outlet for the fluid, means for restricting the outlet, means outside. of the cylinder for indicating the extent of the restriction, and

means for varying the duration ot the means in connection with the piston for 0perati'ng the valve when t-he piston is-in its lowest position.

' 5. IIn a machine of the class described, a mold, a forming plunger for cooperating with the mold, iluidoperated means -it'or moving the former into and out oi the mold, a.. valve' for controlling said means, and a stay ofthe plunger in the mold, said means couiprising a cylinder, avpiston therein, a reser- A, voir'for fluid communicating` with the lower end of the cylinder, a check valve in the communication, means whereby the upward movement of the plunger will lift the piston and -permit the fluid to enter therein, an outlet for the fluid, means for restricting the outlet, and means inreonnection withr the piston for operating the valve when the pisn ton is in its lowest position.

6. In a machine of the class described, a

fmold, a forming plunger for cooperating i therewith,'f-luid operated means for movingl f the plunger-into and out of the mold, a valve for operating said means, and a means for varying the duration of the stay oi' the pluri'- gcr in the mold, said means comprising a e vlinder, a `piston therein, means whereby e. upward movement of the plunger will -inovenient of the piston in the other direction, and means` whereby the piston will operate the valve at the conclusion of its movement in the last named direction.

7. In a machine of tli'e class described, a. mold, a forming plunger for coperaling therewith, fluid operated Ameans 'for moving the plunger into and ont of the inold,a valve for op'eiatipg said means, and a means for varying the duration of the stay of the vplunger in the mold. said ineans comprising a gravity operated plunger for opening the valve, a iluid check for restraining the movenient `ot` the plunger, and means for adjusting the checkwhereby to vary the `speed of the plunger. V

8. ,In a machine of the classdescribed, a.

vmold, a forming plunger for cooperating therewith, fluid operated means for moving the plrnger into and out of the mold, a valve for operating said means, and a means for varying the duration of the stay of the plunger in the mold, said means comprising a gravity operatedspliinger for opening the valve, and a Huid check for restraining the operation of the plunger.

9. ln a machine of the class described, the

Tcombination with an intermittently rotatas ble table having a plurality' of bottoinless molds, of verticallymovable plungers form-` ing primary bottoms for the molds, means for supporting the plungers in the molds, during the operation of the forming plunger, and for releasing them at the end'of theoperation, secondary bottoms movable radially of the table into the molds, a lever plv oted by one end and provided witha lateral arm, a' bar pivoted by its center to the free end of the lever, and swinging in the direction of movement of the table, a spring normally retaining the bar in alineinent with the lever, said bar having meansl for engag ing the secondary bottom and moving it into place when the lever is swung, a second lever pivoted by its center and having,r one end in position for engagement by a primary bottom when released,'a rod pivoted to the lateral arm of the first leverand traversing -an opening in the other end of the seCOndlever, a collar threaded on to the rod llO between the arm and the lever, a spring .bee

tween. the collar and the lever, and nuts on the rod below the lever.

10. In a machine of the -class described, theicombination with an intermittently rotatable table having a. plurality ot bottomless molds, ofl vertically movable plungers forming primary bottoms for the molds,

means for supporting the plungers in the mold during the operation of theV forming plunger, and for releasing them at. the end of the operation, secondary bottoms mov- -able radially of the table into the "molds, a

lever pivoted by one end and provided with alateral arm, a bar -pivoted by its center to Y the free end' of the lever and swinging in primary bottom when released, and a yield` 5 l'v'er and the lateral arm,

.11. In aV machine of the class described, 'the combination with an intermittently ro- \the direction'of movement of the table, a

spring normally-retaining the bar in alinement wit-lrl the lever, said bar having means d for engaging the secondary bottom -and moving it intopla ce when the lever is swung, a second lever pivoted by its ceiiteiwand liaving one end in. position for engagement by a lng connection between the other end of the tatable table having a plurality of bottomless molds, of vertically movable plungers vforming primary bottoms for the molds, kmeans for supporting the plungers in the` mold during the operation of jtl forming plunger, and forreleasing theni at the Vend of the operation, secondary bottoms movable radially of the table into themolds, aA pivotally mounted'lever having-onel end'in'position for engagement by a primary bottom When released, a swinging lever for engag' place and a 'the leverS.

ing\and-movin a secondary'bottom into yielding connection between 12. In a machine of the class 'de-scribed,

thecombination with an intermittently ro- I, tatable table having a plurality of molds, of a vertically movable primary ybottom for each mold, ineansforsupporting saidvbot tom during the o' eration of the forming plunger, and for re easing said bottom at the endl of such operation, a secondary bottom movable radially of the table, means opl erated by the dropping of the primary botl tom for moving the `secondary bottom into position, and means in connection with said f means for delaying said movement.

13. In a inacl -ne of the class described,

the combination with an intermittently ro- ,means for' supporting said bottomsduring` e l the 'operation of the forming plunger and for releasing them at the end of the operareleasing of the primary bottoi'nswill'move the secondary bottoms into osition, and

delaying the movement of thel secondary bottom.

14. In a machine of the class described, the combination'witli an intermittently rotluid operate shears arranged at the charging position of the molds, a fluid operated forming plunger for cooperating with the molds, primary bottoms forthe molds during-the operation of the forming plunger, means for supporting said bottoms during' for releasing tliem at the end of the operation, secondary bottoms', and means whereby the releasing ot' the primary bottom will move the secondary bottom into position.

WILLIAM J. MILLER. l/Vitnesses:

GEO. J. MAGLY, Pn'rnn J. MAGLY.

gtion, secondary bottoms, means whereby the 'tatable table provided with spaced molds, of

the operation of the forming plunger and means in connection with said means for 

